ASoC: cs42l56: Fix beep input device leak on card re-bind

cs42l56 allocates its beep input device with devm_input_allocate_device()
from the ASoC component probe, but the associated devres cleanup is tied
to the underlying I2C device, while cs42l56_free_beep() on the component
remove path only clears the cs42l56->beep pointer.

The input device is only leaked when the sound card is unregistered and
re-registered while the I2C device stays bound. On that path the
component probe runs again and allocates and registers a new input
device every time, leaking the previous one and its sysfs/input node.

Allocate the beep device with input_allocate_device() and pair it with
the component lifecycle: input_free_device() on registration failure and
input_unregister_device() in cs42l56_free_beep().

Signed-off-by: Chancel Liu <chancel.liu@nxp.com>
Link: https://patch.msgid.link/20260913101531.2787654-7-chancel.liu@oss.nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>

0 files changed, 0 insertions, 0 deletions